Means for detachably mounting scrapers between two adjacent rolls



- Sept. 28, 1954 H. A. KULJIAN 2,690,068

MEANS FOR ACHABLY MOUNTING SCRAPERS BETW TWO ADJACENT ROLLS Filed Jan.2, 1953 4 Sheets-Sheet l P; P P2 Sept. 28, 1954 H. A. KULJIAN 2,690,068

MEANS FOR DETACHABLY MOUNTING SCRAPERS BETWEEN TWO ADJACENT ROL FiledJan. 2, 1953 4 Sheets-Sheet 2 INVENTOR. IVA/69y 4.- Al/LJ/A/V ATTOEIYEXSept. 28, 1954 H. A. KULJIAN 2,690,068

MEANS FOR DBTACHABLY MOUNTING SCRAPERS BETWEEN Two ADJACENT ROLLS FiledJan. 2, 1953 4 Sheets-Sheet 3 80 8% 4r 6. so

INVENTOR. HAM) ,4. K04 .//4/V Sept. 28, 1954 H A. KULJIAN 2,690,068

MEANS FOR DETACHABLY MOUNTING SCRAPERS BETWEEN TWO ADJACENT ROLLS FiledJan. 2, 1953 4 Sheets-Sheet 4 fly. 15:

INVENTOR. HA/PAYA. AUL J/A N Patented Sept. 28, g 1954 MEANS FORDETACHABLY MOUNTING .SCRAPERS BETWEEN TWO ADJACENT ROLLS Harry Asdou-rKuljian, Merion, Pa. Application January 2, 1953, Serial No. 329,403

8 Claims. 1

In the manufacture, or in the processing, of synthetic filaments, thefilament is caused to move: longitudinally of athread storing andadvancing reel formed of a plurality of. rotating rolls, and variousliquid re-agents are poured over the filament as it passes throughsuccessive zones along one or more of the rolls.

In order to make sure that the various liquids neededare present insuificient quantities, and because it is difficult, if not impossible togauge the'liquid requirements exactly, it is the practice to supply thevarious liquids in relatively excessive amounts. But, because at leastsome of the liquids used are expensive, because the pres-- ence ofliquids in excessive quantities will result in excessive interminglingof the various liquids delivered to adjacent zones on the roll withobviously undesirable consequences, and because the presence of anexcessive quantity of one reagent or' another may, of itself, produceundesired results, it is desirable to remove excess liquids so as toregulate the quantities of the various liquids which are allowed toremain onthe filament or on the rolls during movement of the filamentthrough successive zones along such roll. It is also desirable that theexcess liquids be removed, as far as possible, in a segregated manner soas to facilitate reclamation and reconcentration of the various liquids.

A further object is to produce an improved scraping and segregatingdevice which will be inexpensive to make and easy to install or remove.

v A still further object is to provide improved means for mounting anddemounting the scraping and segregating means referred to.

A still further object is to produce an improved trough for receivingthe various liquids scraped oif the rolls and for disposing of saidliquids in combined or in segregated manner;

These and other objects are attained by my invention as set forth in thefollowing specification and as shown in the accompanying drawings inwhichv Fig; 1 is a fragmentary and diagrammatic view of a threadmanufacturing or thread processing means embodying the invention,certain parts being omitted.

Fig. 2 is an enlarged, fragmentary, sectional view, looking in thedirection of line 2-2 on Fig. 3 is an enlargement of the uppercentralportion of Fig. 2 better to Show the details of on t g. 4 is a:composite, perspective view of the 2 combined liquid scrapers andsegregators, looking at the convex sides thereof.

Fig. 5 is a perspective view of the liquid receiving trough.

Fig. 6 is an elevational view of the concave side of one: of the liquidscrapers and segregators shown in Fig. 4'.

Fig. 7' is a sectional view loking in the direction of line 1-1 on Fig.5.

Fig. 8' is an elevational view of the concave side ofv the other of theliquid scrapers and segregators shown in Fig. 4.

Fig. 9 is a sectional view looking in the direction' of line El9 on Fig.5.

Fig; 10 is" a fragmentary top plan view of Fig. 2'.

Figs. L1,..12 and 13 are highly diagrammatic views showing the-f firstthree steps of inserting the: liquid scrapersv and separators betweenthe uppermost? rolls of the reel. 7

Fig. 14 is a topplan view showing how the parts appear after completionof the fourth step of assembly. v

The apparatus illustrated includes a filament advancing and storing reelformed of a plurality of rolls R usually eight in number, which areequally spaced around a fixed central support [8. These rolls, only theupper two of which have been shown in Figs. 2, 3, 10" and 14,. havetheir axles journalled for rotation in self aligningbearings (not shown)formed in, or carried by, opposite end; plates 24' and 2B. The selfaligning bearings referredto may be of any standard type, it being onlynecessary that the bearings in. at least end plate 26 be such as toprovide a little play for the axles journalled therein. The rolls arerotated about their axes by motor M, the shaft of which carries a gear,not shown, which. meshes with gears, not shown, on the adjacent ends. ofthe axles of the rolls. Since the rolls may be rotated in any desiredmanner, and since the: means for rotating the rolls forms no part of:the present invention, the manner in which the rolls are rotated is notshown or described in detail. It is sufiicient to point out that all therolls are rotated at the same speed by a single central. gear.

The end plates 24 and 2B" are supported by the fixed central support I 8which is in turn supported by a suitable frame 28', so that the filamentad'- vancing' and storing reel is mounted in cantilever fashion. The endplate it is rotatable relative to the end plate 26 so as toskew the axisof the rolls relative to" the axis of centralflsupport l8 or to airirnaginary central horizontal axis,

whereby; when the rolls are rotated and when a" filament 33 is woundabout the supported, or right hand end, of the reel, the filament willmove in the form of a helix from the supported to the unsupported end ofthe reel. This can be done by loosening nut 25 and turning end plate 24through a very small angle. Since this arrangement, too, forms no partof the present invention, it is not described in detail.

The filament 30 may be in the nature of a freshly coagulated strand inwhich case it is produced by extruding an appropriate solution, underpressure, through a spinnerette 32. into a suitable coagulating bath 34,or it may be in the nature of an already-formed filament fed to the reelfrom a spool or other source, not shown. The freshly coagulated filamentis passed over one or more godet wheels 38, in any desired manner, andfor the usual purpose.

In order to complete the regeneration of a freshly coagulated filament,or in order to process an already formed filament, various conventionaland well known liquid re-agents such as acid and alkali solutions,soaps, water, etc. are applied to the filament as it moveslongitudinally of the reel. In Fig. 1 there are shown a number of pipes,Pl, P2, P3, P4, P5, P6, etc., which are arranged to deliver therespective treating liquids to the filament as it passes throughsuccessive zones on upper roll 39. It will be noted that the pipes stopshort of the left hand end of the reel so as to provide an end dryingzone in which any suitable heating means may be installed for drying thefilament.

In order to remove excess liquids from roll 39 and adjacent roll 40, andin order to minimize intermingling of the liquids delivered to adjacentzones, I provide the combined liquid scrapers and separators of the typeshown in my Patent No. 2,634,449 of April 14, 1953. Essentially, and asbest shown in Figs. 3 and 4, these comprise curved shells 4| and 42which are adapted to be placed back-to-back with their respectiveconcave surfaces 44 and 46 facing the adjacent uppermost rolls 39 and 48respectively. The concave surfaces of these shells are provided withcentral, longitudinal strips 41 and 48 and with a plurality oftransverse strips 59. The strips 41, 48 and 50 contact the adjacentrolls and are thus subject to wear. Therefore, they are made of amaterial softer than the material of the shell and they can be madereadily detachable. The horizontal strips 4! and 48 are intended toscrape liquid off the entire surface of each roll and the transversestrips 58 are intended to minimize the intermlnglmg of the differentliquids supplied by the respective pipes Pi, P2, P3, etc. To this endthe strips 5! are so spaced that, when they contact the respectiverolls, they define zones of the de- 1s iaredtlength which register withthe pipes PI, P2,

As shown in Figs. 2 and 3, rolls 39 and 49 rotate in a counterclockwisedirection. Therefore, liquid scraped off roll 39 by horizontal strip 41on shell 42 will collect above that strip while liquid scraped from roll48 by horizontal strip 48 on shell 4| will collect below that strip.

To remove liquids scraped oh? by strip 41 on shell 42 I provide spouts52 which pass through shell 42, above the horizontal strip 48, therebeing at least one such spout between each pair of juxtaposed verticalstrips 58. The liquids scraped off roll 48 by strip 48 drain down theinner surface of the shell and need no spouts 52.

The liquids thus collected are emptied into a trough 54. This trough,which is supported below rolls 39 and 48 in any suitable manner, has itsinterior divided by partitions 5% into separate compartments Cl, C2, G3,etc. These compartments are further divided by longitudinal wall 58 toprovide small compartments Fl, F2, F3, etc. formed between thelongitudinal wall 58 and the front wall 69 of the trough. Thecompartments (3!, C2, C3, etc. are so arranged as to register with thespaces between adjacent transverse strips 50. It should be noted thatthe thickness of partitions 55 is less than the width of thecorresponding transverse strips 56 so as to ensure that all of theliquid draining down the juxtaposed faces of adjacent transverse stripswill be deposited in the particular compartment l in which it isintended to be received.

If the liquids are to be recovered separately, for reclamation andreuse, they are run off through corresponding drain orifices 68 locatedin the bottom walls of the compartments CI, C2, 03, etc.

Compartments Cl, C2, G3, etc. communicate, through orifices 12, withcorresponding compartments Fl, F2, F3, etc. and compartments Fl, F2, F3,etc. communicate with each other through orifices 14. With thisarrangement of orifices B8, 12 and 14 it is possible to dispose of any,or of all, of the liquids through a common drain and it is possible tocollect selected liquids separately for reclamation and reuse. Forexample, if an acid, or an alkali, solution is drained into compartmentCi, corresponding orifice i2 is closed and the acid is drained throughorifice 68 from compartment C3 to a point of reclamation. If wash wateris drained into compartment 02, for example, corresponding outlet at isclosed and orifice 12 leading to compartment F2 is opened. The washwater thus flows from compartment C2 into compartment F2 and throughorifices 14 to be drained through outlet ll in either end wall of thetrough. This provides extreme flexibility of operation by selectivelyclosing or opening one or another of the orifices between thecompartments 0 and the F compartments, the various liquids can bediscarded or reclaimed as desired.

To provide for easy mounting and demounting of the shells 4i and 42, Iprovide the following arrangement:

The convex outer surface of shell 4! is provided with spaced lugs St,for supporting spring rods 32 which also pass through an arcuate lug 84.The lug 84 is secured to the convex outer surface of shell 42 by a pin88 which is carried by the convex side of shell 4! and which engages anopening formed in the concave side of lug 84. Likewise shell 42 isprovided with a similar lug 8411 which corresponds in size and shape tomember 84 and which is attached to shell 42 by any suitable means.

' The lug 84 on shell ii is provided with an upper hole 94 and a lowerhole 86, and the corresponding lug 840. on to shell 42 is provided withan upper short pin 98 and a lower long pin Hill adapted to engage theholes 94 and 96 respectively.

In assembling the shells 4i and 42, they are first placed back to backand the lower, and longer, pin Hill on lug 84a is only partiallyinserted into lower hole in lug 84. The two shells are thus pivotallyjoined and, with the upper short pin 98 free of its corresponding hole94, the lower edges of the two shells, as viewed in Fig. 2, are broughttogether and inserted acwnwaruly b tween nine-i9- and it", sshereinafter explained. I

Because the shells are of tnesameiengtnjand because pin I is only partlyinserted in hole 96, it follows that the shells 4| and 42 will notcoincide, longitudinally speaking, jrh'er'ercre, when the rig-ht handend of shell 42 abuts collar I02 on roll 39, as shown Fig. 14,theqcorresponding end of shell 4| will be spaced from the collar Iii-3on roll 40. If shell 4-Iyis now moved in the direction of the arrow inFig. 14 until it abuts collar I03, the short pin 98 will enter hole 54to lock the shells together back to back as shown in Fig. 2.

The shells are held against longitudinal movement relative to the reelby means of a stop plate I 04 which is inserted between rolls 39 and 40and secured by bolts I06 to a bracket or other support, not shown,carried by the center post or by the frame of the machine.

The manner in which the shells are mounted, and demounted, is shown inFigs. 11 to 14. From these figures it will be seen that when the shellsare hinged together only by means of the lower, long pin I00 engaginglower hole 96, the shells can be pivoted or rotated through a relativelywide angle. To begin inserting the hinged shells between the rolls 39and 40, they are first placed in the position of Fig. 11 in which theirlower edges are relatively close together so as to pass through the nipbetween the rolls. As the shells move downwardly, their upper edges areslowly rotated in the reverse direction, until they reach the positionsof Figs. 12 and 13.

The shells M and 42 will now be so related that the short upper pin 98will be in alignment with the upper hole 94 and in which shell 4| islongitudinally staggered with respect to shell 42. In other words shell42 abuts collar IOI while shell 41 does not abut collar I03. At thispoint, shell M is pushed until it abuts collar I03 until it is inlongitudinal alignment with shell 42. Stop plate I04 is lowered betweenrolls 39 and 40 and secured in the position shown in Fig. in which itabuts the edges of shells M and 42 and prevents longitudinal movementthereof.

To demount the liquid scrapers and segregators, the stop plate I04 isremoved, shell 4I is longitudinally of shell 42 to detach upper pin 98from upper hole 94. This permits rotation of the shells about lower pinI00 in a direction to bring the lower edges close together so as to passupwardly through the nip of the rolls. By this means, the liquidscrapers and separators are locked firmly in position and can be mountedor demounted, e asily, quickly and without in any way disturbing thereel itself.

In their assembled position, the lug 8401. on shell 42 abuts, andslightly bends, spring rods 82 whereby the shells are biased in oppositedirections into engagement with rolls 39 and 40. The action of thespring insures that the scraping horizontal strips 41, 48 and, verticalsegregating strips 50 will contact the rolls with a following pressure.

What I claim is:

1. The combination with a thread treating ap paratus of the type whichincludes a number of elongated rolls arranged to form a reel adapted toreceive a thread to be treated, means for supplying various treatingliquids to said filament in successive zones along said reel, and spacedscrapers disposed transversely of the axis of the reel in abuttingrelationship with the surface of at" leastene ef saidrolls, the spacingof said scrapers; being such that the spaces between adjacent scraperscorrespond to' said zones, of a trough located below said scrapersandsaid roll and having a main compartment and an auxil iary compartmentcorresponding toeach of said zones, each of said main compartments beingso located as initially to receive the" liquid from' the zonethereabove, there being a drain openi'ng leading from each of said maincompartments to a point of disposal, and apassage lead ing from saidmain to said auxiliary compartment whereby, by closing said drainopening and opening said passage the liquid will flow from said maincompartment to said auxiliary compartment and whereby, by closing saidpassage and opening said drain opening the liquid will flow to saidpoint of disposal;

2. The structure recited in claim 1 in which said auxiliary compartmentalso has a drain leading to another point of disposal.

3. A thread treating apparatus including a plurality of elongated rollsarranged to form a reel about which a thread to be treated is wound,means for supplying various treating liquids to the thread in successivezones along said reel, a pair of arcuate shells, scrapers on the concaveface of each of said shells, and mounting means for removably mountingsaid shells between two juxtaposed rolls of said reel with said scrapersabutting said rolls, respectively, and with the convex faces of saidshells in juxtaposition, said means including a first fastening meanscapable of pivotally connecting said arcuate shells together in a mannerto permit movement of the longitudinal edges thereof toward each other,for initial insertion of said edges between said rolls, and forpermitting subsequent rotation of the shells in opposite directionsafter the shells are in their desired position between the rolls, and asecond fastening means for locking said shells against further relativerotation.

4. The structure recited in claim 3 in which said first fastening meansincludes juxtaposed lugs carried by the convex faces of said shells,there being an opening in one of said lugs, and a pin carried by theother of said lugs and adapted to engage said opening.

5. The structure recited in claim 3 and a third fastening means forlocking both of said shells against longitudinal movement relative tosaid rolls.

6. The structure recited in claim 3 and means carried by at least one ofsaid shells for exerting following pressure against said shells in thedirection of their respective rolls.

7. A thread treating apparatus including a plurality of elongated rollsarranged to form a reel about which a thread to be treated is found,means for supplying various treating liquids to the thread in successivezones along said reel, a pair of transversely arcuate shells, scraperson the concave face of each of said shells, and mounting means forremovably mounting said shells between two juxtaposed rolls of said reelwith said scrapers abutting said rolls, respectively, and with theconvex faces of said shells in juxtaposition, said means including afirst lug on the convex side of one of said shells, a second lug on theconvex side of the other shell, a relatively long pin on one side of oneof said first lugs, there being a hole in the corresponding side of saidsecond lug adapted to receive said long pin, a relatively short hole onsaid side of said second lug adapted to be engaged by said short pin,

whereby partial insertion of said long pin into its corresponding holewill rotatably hinge the shells together with the ends of said shellsout of registration with each other and whereby, relative longitudinalmovement of said shells to engage said short pin in its correspondinghole, will bring the ends of said shells into registration with eachother and will lock said shells against relative rotation.

8. The structure recited in claim 7 and means afiording a fixed abutmentfor the joined shells References Cited in the file of this patent UNITEDSTATES PATENTS Number Name Date 2,155,324 Moritz Apr. 18, 1939 2,608,850Fry Sept. 2, 1952

